Improvement in machines tor drying- yarn



"uitrit .gratta GEORGE RICHARDSON, OF LOWELL, MASSACHUSETTS. y

L ettcqis Patent VN 92,210, dated .Tidy 6, i869.

'IMPRQVEMENTIN MACHINES FOR DRY 1N@ YARN, am.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom item1-y concern:

Be it known that I, GEORGE RICHARDSON, of Lowell, -in the county ot' Middlesex, and State ot' Massachusetts', have invented a new and use-fnl Machine for Dryingl Yarns, Twines, Cords, and similar fabrics of fibrous material; and I do herebydeclare that the following is a t'nll, clear, and exact description of 'the construction and operation of the same, reference being had to the. annexed drawingpwhich is a central longitudinal section ot' my invention, and to the letters of reference marked thereon.

1n order to enable others skilled iii-the art to. make and use my invention, l will proceed to describeits construction and operation. y E i:

In manufacturing yarns, twines, cords, or'other fabrics ot ibrous material, it often becomes necessary to innnerse them in various fluids, after which they require to be thoroughly dried. Care is necessary, in this process, that the fabrics be not injured by too great beat, yet the degree ot' heat should he such that no time be unnecessarily' lost in the drying-p"ocess.

It is 'also always 'desirable that as little space as possible bc occupied by the drying-apparatus.

My invention consists in providing a more simple, etiicient, and economical device for drying yarns, twmes, or other fabrics oi'iibrous material.

`1t consists in passing the fabric tthrough a current of air, heated by steam, and confined and kept in contact with the fabric by a box, or t-rnnli, provided with transverse ribs on its interior surface.

In the dra-wing- ,n

A represents a revolving fan.

B, wind-duct.

' C, box, or trunk. I

I) D, metallic pipes, supplied with-steam; E E, fabric to be dried.

F l` F, small rolls..

Gr H, beams containing the fabric.

. box l1.

'edly penetrated by the hoi-air current, must be rap I, liquor-box K K K, dre.; ribs placed upon the top and bottom of the trunk, interiorly, and at right' angles to its The operation of my invention is as follows:

The fan A snppiies a strong current of air, which, in passing through the wind-duct B, is heated by the v coiled steam-pipes 'D D; thence it passes into the trunk O at one 2nd, "lheftabric E is unwound from the beam G, passing in the direction ot' the black airows, over and around the small rolls F FF, and is thereby immersed. in the tnid contained in the liquor- At'ter leavingthe liquor-box, the fabric is conducted: longitudinally'through the trunk O. The current of bot air from the wind-duct, as it passes VThrough the trunk, is alternately deflected from'the top to bottom', and from bottom to top ot. the trunk, as itineets the ribs or detlectors K K K, &c.

The course, ot' the hot-air current-s is indicated by.` the small blue arrows. v l

Thus it will be seen that the fabric, beingv repetir'V idly and etiectually dried, and the Contact with the hot air may be prolonged to any desired extentv by lengthening the trunk, and adding to the number ot (1ey i iiectors.

vI claim the trunk C, conducting a blast of heated air, said trunk being provided with ribs, or detiectors K 1i K, placed transversely and arranged alternately, as shown, all combined and operating tbl-'the purpose of rapidly and economically drying yarns, twines, or..Y other fabrics ot' ibrons material, substantially as herein described and set forth.

GEO. RICHARDSON. 'Witnesse-s: i i Y I. W. SPRPSGER,

W I. Guxme. 

